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MAX977EEE

更新时间: 2024-02-05 23:43:20
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美信 - MAXIM 比较器
页数 文件大小 规格书
16页 266K
描述
Single/Dual, +3V/+5V Dual-Speed Comparators with Auto-Standby

MAX977EEE 数据手册

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S in g le /Du a l, +3 V/+5 V Du a l-S p e e d  
Co m p a ra t o rs w it h Au t o -S t a n d b y  
5/MAX97  
ELECTRICAL CHARACTERISTICS (continued)  
(V = +2.7V to +5.25V, specifications are for high-speed mode, T = -40°C to +85°C, unless otherwise noted. Typical values are at  
CC  
A
T
A
= +25°C.) (Note 1)  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
DIGITAL INPUTS  
LP Input Voltage High  
LP Input Voltage Low  
LP Fall Time  
V
0.7 xV  
V / 2  
CC  
V
V
LPIH  
CC  
V
LPIL  
V
/ 2 0.3 x V  
CC CC  
t
(Note 5)  
10  
µs  
µA  
V
LP  
LP Input Current  
I
0.01  
±1  
LPB  
STO_ Input Voltage Low  
STO_ Source Current  
DIGITAL OUTPUTS  
OUT_ Output Voltage High  
OUT_ Output Voltage Low  
V
V
/ 2 0.3 x V  
CIL  
CC CC  
I
V
CC  
= 3V  
0.15  
µA  
STO  
V
I
= 2mA, all modes  
= 2mA, all modes  
SINK  
V
- 0.4  
V - 0.1  
CC  
V
V
OH  
CC  
SOURCE  
V
I
0.1  
0.4  
50  
OL  
High-speed mode,  
overdrive = 5mV  
28  
0.82  
28  
ns  
µs  
ns  
µs  
Propagation Delay, Low to High  
(Note 6)  
C
= 10pF,  
LOAD  
t
PD+  
V
CC  
= 5V  
Low-power mode,  
overdrive = 10mV  
1.6  
50  
High-speed mode,  
overdrive = 5mV  
Propagation Delay, High to Low  
(Note 6)  
C
V
CC  
= 10pF,  
= 10pF  
LOAD  
t
PD-  
= 5V  
Low-power mode,  
overdrive = 10mV  
0.48  
1.6  
Propagation-Delay Skew (Note 6)  
Propagation-Delay Matching  
t
C
2
1
ns  
ns  
SKEW  
LOAD  
t  
MAX977 only, C  
= 10pF  
PD  
LOAD  
High-speed mode  
Low-power mode  
1.6  
1.6  
C
V
CC  
= 10pF,  
= 5.0V  
LOAD  
Rise/Fall Time  
ns  
STAT_ Output Voltage High  
STAT_ Output Voltage Low  
V
I
= 3mA, all modes  
V
CC  
- 0.4  
V
V
SH  
SOURCE  
V
SL  
I
= 400µA, all modes  
0.4  
SINK  
Note 1: The MAX975EUA is 100% production tested at T = +25°C; all temperature specifications are guaranteed by design.  
A
Note 2: Inferred by CMRR. Either input can be driven to the absolute maximum limit without false output inversion, as long as the  
other input is within the specified common-mode input voltage range.  
Note 3: V is defined as the mean of trip points. The trip points are the extremities of the differential input voltage required to make  
OS  
the comparator output change state (Figure 1).  
Note 4: The difference between the upper and lower trip points is equal to the width of the input-referred hysteresis zone (Figure 1).  
Note 5: Guaranteed by design. The LP pin is sensitive to noise. If fall times larger than 10µs are expected, bypass LP to ground  
using a 0.1µF capacitor.  
Note 6: Propagation delay is guaranteed by design. For low-overdrive conditions, V is added to the overdrive. The following  
OS  
equation defines propagation-delay skew: t  
= t  
- t  
SKEW  
PD+ PD-.  
_______________________________________________________________________________________  
3

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